# 2G

> term used to represent the 2nd generation of mobile telecommunications technology

**Wikidata**: [Q845349](https://www.wikidata.org/wiki/Q845349)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/2G)  
**Source**: https://4ort.xyz/entity/2g

## Summary
2G is the term used to represent the second generation of mobile telecommunications technology. It is classified as a generation of wireless telephone technology that follows the first generation, known as 1G, and precedes the 2.5G generation.

## Key Facts
*   **Definition:** The term represents the 2nd generation of mobile telecommunications technology.
*   **Classification:** It is an instance of a "mobile phone generation."
*   **Predecessor:** 2G follows 1G (the first generation of wireless cellular technology).
*   **Successor:** 2G is followed by 2.5G (a generation implementing packet-switched domains).
*   **Association:** It is closely related to the Global System for Mobile Communications (GSM); some sources cite 2G as being the same as GSM.
*   **Evolution:** The technology eventually evolved into 2.75G (EDGE), which was deployed on GSM networks beginning in 2003.

## FAQs
### Q: What is 2G?
A: 2G stands for the second generation of mobile telecommunications technology. It represents a specific class of wireless telephone technology that succeeded 1G.

### Q: What technologies are associated with 2G?
A: 2G is frequently associated with the Global System for Mobile Communications (GSM). It served as the base for later enhancements like 2.5G and 2.75G (EDGE).

### Q: What came after 2G?
A: 2G was directly followed by 2.5G, a generation of mobile telephony that implemented a packet-switched domain in addition to the existing circuit-switched domain.

## Why It Matters
2G serves as a fundamental milestone in the timeline of wireless telephone technology. As the second generation of mobile telecommunications, it bridges the gap between the initial analog cellular standards (1G) and later data-capable networks. Its significance lies in establishing the infrastructure for digital networks, which allowed for the subsequent introduction of packet-switched data services via 2.5G and 2.75G (EDGE). The widespread deployment of 2G, particularly through the Global System for Mobile Communications (GSM), laid the groundwork for modern mobile phone ubiquity. It defines the era where mobile phones transitioned from purely voice-based devices to devices capable of supporting data transmission, a capability expanded upon by its immediate successors.

## Notable For
*   **Generational Identity:** distinctively identified as the "2nd generation" of mobile telecommunications.
*   **GSM Integration:** widely cited as being the same entity as the Global System for Mobile Communications (GSM).
*   **Timeline Position:** serving as the direct successor to 1G and the immediate predecessor to 2.5G.
*   **Evolutionary Base:** acting as the foundational network for 2.75G (EDGE) deployments, which began in 2003.

## Body
### Classification and Definition
2G is formally classified as a "mobile phone generation." It is defined strictly as the term used to represent the 2nd generation of mobile telecommunications technology. It falls under the broader category of "Thing" and "wireless telephone technology."

### Relation to Other Technologies
The timeline of mobile technology places 2G between two specific iterations:
*   **Preceded by:** It follows **1G**, which is defined as the first generation of wireless cellular technology.
*   **Succeeded by:** It is followed by **2.5G**, a generation characterized by the implementation of a packet-switched domain alongside the circuit-switched domain.

### Network Standards and Evolution
The 2G ecosystem includes specific evolutions and standards:
*   **GSM:** Sources indicate that 2G is "said to be the same as" the **Global System for Mobile Communications (GSM)**.
*   **2.75G (EDGE):** An extension of 2G technology known as 2.75G describes Enhanced Data rates for GSM Evolution (EDGE), Enhanced GPRS (EGPRS), or IMT Single Carrier (IMT-SC). This iteration was deployed on GSM networks starting in **2003**, initially by **AT&T** in the United States.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "2G",
  "description": "Term used to represent the 2nd generation of mobile telecommunications technology.",
  "sameAs": [
    "https://en.wikipedia.org/wiki/2G",
    "https://www.wikidata.org/wiki/Q47665"
  ],
  "additionalType": "Mobile phone generation"
}

## References

1. [Source](https://books.google.de/books?id=ffVHAAAAQBAJ&pg=PA5)
2. Freebase Data Dumps. 2013